Duncan Sheik, singer and composer of Spring Awakening, dies at 56

The musician, who went from 90s alt-pop hits to Tony-winning Broadway success, died from cardiac arrest Duncan Sheik, the singer-songwriter behind the 90s alt-pop touchstone Barely Breathing and the composer of the Tony -winning musical Spring Awakening, died on Thursday at a Manhattan hospital.

He was 56. His death, from heart failure that led to cardiac arrest, was confirmed to the New York Times by his mother…